The answer would be D. 60,000 because the problem tells us V (volume) is equal to 50 times the number of moles. We know there are 1,200 moles, so multiple 50*1,200 to get 60,000.
The monthly salary = $1130 plus 10% commission from the sells
The sales of the last month = $37,200
so, the amount of commission = 10% of 37,200 =

So, the gross pay = 1,130 + 3,720 = $4,850
Answer:
assuming no doors or windows & that 5m is height:
4 walls = 4.67
roof = 2.4
Step-by-step explanation:
area of walls = 2(8x5)+2(6x5) = 140 m^2
140/30 = 4.67
area of roof = 8x6 = 48 m^2
48/20 = 2.4